<PAGE>   1
EXHIBIT 10.6


                    SERVICE CONFIRMATION                _____ NEW   X   REVISED
               WEST INTERACTIVE CORPORATION     12/30/98 REVISION EFFECTIVE DATE

Client Name:    New Lauderdale                
                --------------                
Account Manager:Sean Owens                          
                ---------------               
Program Name:   All U.S. 800 and 900 Programs 
                -----------------------------           

Contact: Steve Feder/Andrew Stollman        Title:  _______________      
          ---------------------------                                     
Sales Representative:                                                    
                           ------------------------------------------     
Client of Record Status:    x    WIC  _____ Client                       


      SET-UP FEES

X     Custom Programming @ {Confidential portion omitted and filed separately 
      with the Commission}/Hr = Will be bid

      PER TRANSACTION FEES

X     AT&T Settlement & Billing {Confidential portion omitted and filed 
      separately with the Commission} 

X     Misc. Telecommunications Tax {Confidential portion omitted and filed 
      separately with the Commission}

X     AT&T SERVICE FEES - 900 NUMBER  
      {Confidential portion omitted and filed separately with the
      Commission}
      {Confidential portion omitted and filed separately with the Commission}

X     Turn-Up Fee per 900 number* {Confidential portion omitted and filed 
      separately with the Commission} 

X     Price-Point Change Fee per 900 number* {Confidential portion omitted and 
      filed separately with the Commission}

*     Price-Point/Turn-Up fee for those in a combined access of 200 per month 
      per client

X     AT&T SERVICE FEES - 800 NUMBER {Confidential portion omitted and filed
      separately with the Commission} {Confidential portion omitted and filed
      separately with the Commission}

X     CANADIAN ACCESS {Confidential portion omitted and filed separately with 
      the Commission}

X     CALLER PREAMBLE (Per Caller Disconnect within established duration)

      AT&T FEES 
      0-19 Seconds {Confidential portion omitted and filed separately with
      the Commission} 
      20-30 Seconds {Confidential portion omitted and filed separately
      with the Commission} 
      Over 30 Seconds {Confidential portion omitted and filed separately with 
      the Commission.} 

      WEST INTERACTIVE FEES 
      0-30 Seconds {Confidential portion omitted and filed separately with the 
      Commission} 
      Over 30 Seconds {Confidential portion omitted and filed separately with 
      the Commission}

      SERVICE BUREAU FEES (Billed in full minute increments)

<TABLE>
<CAPTION> 
      Monthly           0 - 400,000             400,001+  
      -------           -----------             -----------------
<S>                     <C>                     <C>

Per Min.                {Confidential portion omitted and filed separately with 
                         the Commission}
</TABLE>

X     TOLL LINE FEES {Confidential portion omitted and filed separately with the
      Commission}

      MONTHLY FEES

X     AT&T Number Fee-900 Ea. @ {Confidential portion omitted and filed 
      separately with the Commission} = $___/mo.

__    AT&T Number Fee-800 ___ @ {Confidential portion omitted and filed 
      separately with the Commission} = $___/mo.

X     Add'l. Speech Storage{Confidential portion omitted and filed separately 
      with the Commission} $If applicable/Mo.

X     Monthly Service Fee:

<TABLE>
<CAPTION> 
      Call Minutes      0 - 5,000               5001 +
      ------------      ---------               ------
<S>                     <C>                     <C>

      Per Month          {Confidential portion omitted and filed separately with 
                          the Commission}

</TABLE>
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      SPECIAL SERVICE FEES

X     Voice Talent-English ($150 Minimum) {Confidential portion omitted and 
      filed separately with the Commission}

X     Recording for outbound use (1 hr. minimum) {Confidential portion omitted 
      and filed separately with the Commission}

X     Voice Talent-Spanish ($200 Minimum) {Confidential portion omitted and 
      filed separately with the Commission}

X     Translations {Confidential portion omitted and filed separately with the
      Commission}

X     Dubbing Fees First 2 Hours {Confidential portion omitted and filed 
      separately with the Commission}

      After 2 Hours {Confidential portion omitted and filed separately with the
      Commission}

X     Outdial Calls (Billed in 6 sec. increments) {Confidential portion omitted 
      and filed separately with the Commission} (6 sec. Minimum)

X     Transfer Calls-800 Line-In House Center {Confidential portion omitted and
      filed separately with the Commission}

X     Conference Program {Confidential portion omitted and filed separately with
      the Commission}

X     Transfer calls to toll line {Confidential portion omitted and filed 
      separately with the Commission}

X     Voice Recognition {Confidential portion omitted and filed separately with 
      the Commission}

X     Automatic Number Identification (ANI) {Confidential portion omitted and 
      filed separately with the Commission}

__    Voice Capture - Send Tape {Confidential portion omitted and filed 
      separately with the Commission}

X     LIDB-Batch {Confidential portion omitted and filed separately with the
      Commission}

X     LIDB-Real Time {Confidential portion omitted and filed separately with the
      Commission}

X     ADR RRN Fee {Confidential portion omitted and filed separately with the
      Commission}

X     ADR Fees {Confidential portion omitted and filed separately with the
      Commission}

X     ADR Setup Fees (over 4,000 Nos.) {Confidential portion omitted and filed
      separately with the Commission}

X     Real time OCDD {Confidential portion omitted and filed separately with the
      Commission}

X     DAT Tape {Confidential portion omitted and filed separately with the
      Commission}

X     Audiotape {Confidential portion omitted and filed separately with the
      Commission}

X     UCC Slips {Confidential portion omitted and filed separately with the
      Commission}

X     COD Labels {Confidential portion omitted and filed separately with the
      Commission}

X     Facsimile Reporting {Confidential portion omitted and filed separately 
      with the Commission}

X     Send Electronic transfer {Confidential portion omitted and filed 
      separately with the Commission}

X     Diskette {Confidential portion omitted and filed separately with the
      Commission}

X     Loading Vice Files w/FTP File Transfer {Confidential portion omitted and 
      filed separately with the Commission}

X     LCI Sales Verification {Confidential portion omitted and filed separately 
      with the Commission}

X     Speech Storage (Voiceprint, Personals, Voicemail) {Confidential portion
      omitted and filed separately with the Commission}

X     Express ID (Targus) {Confidential portion omitted and filed separately 
      with the Commission}

X     Guaranteed Payout 900# {Confidential portion omitted and filed separately 
      with the Commission}

X     ASDM Back-up Voice Print Storage; Eff. 7/1/98 {Confidential portion 
      omitted and filed separately with the Commission}

X     Area Code Routing {Confidential portion omitted and filed separately with 
      the Commission}

      All shipping/postage to be billed at cost 

      TRANSCRIPTION FEES (PER RECORD)

X      Name/Address/City/State/Zip (Total Monthly Records)

<TABLE>
<CAPTION>
       0 - 30,000            30,001-300,000        300,000 +
       ----------            --------------        ---------
<S>                          <C>                   <C> 
      {Confidential portion omitted and filed separately with the Commission} 
      One Output Included (Please Designate)

</TABLE>
      __ Mag Tape __Hard Copy __ Diskette

X     Add Telephone Number {Confidential portion omitted and filed separately 
      with the Commission}

X     Birthday {Confidential portion omitted and filed separately with the
      Commission}

__    Sequence Number {Confidential portion omitted and filed separately with 
      the Commission}

X     Name Only (Effective 11/2) {Confidential portion omitted and filed 
      separately with the Commission}

X     Yes/No {Confidential portion omitted and filed separately with the 
      Commission}
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X     Social Security {Confidential portion omitted and filed separately with 
      the Commission} (Effective 10/7)

X     Modem Charge (Effective 11/2) {Confidential portion omitted and filed
      separately with the Commission}

X     Data Merge {Confidential portion omitted and filed separately with the
      Commission} 

      There is a minimum {Confidential portion omitted and filed
      separately with the Commission} fee 

      SPANISH TRANSCRIPTION FEES (PER RECORD)

X     Name/Address/City/State/Zip (Total Monthly Records) 

<TABLE>
<CAPTION>
      0-30,000           30,001-300,000               300,001+
      --------           --------------               --------
<S>                      <C>                          <C>
      {Confidential portion omitted and filed separately with the Commission} 
      One Output Included (Please Designate)
</TABLE>

      __ Mag Tape __ Hard Copy __ Diskette

X     Add Telephone Number {Confidential portion omitted and filed separately 
      with the Commission}

X     Birthday {Confidential portion omitted and filed separately with the
      Commission}

__    Sequence Number {Confidential portion omitted and filed separately with 
      the Commission}

X     Name Only (Effective 11/2) {Confidential portion omitted and filed 
      separately with the Commission}

X     Yes/No {Confidential portion omitted and filed separately with the 
      Commission}

X     Modem Charge {Confidential portion omitted and filed separately with the
      Commission} (Effective 11/2)

X     Data Merge {Confidential portion omitted and filed separately with the
      Commission} 

      There is a minimum {Confidential portion omitted and filed separately with
      the Commission} 

      WEST TELEMARKETING CORPORATION 
      LIVE OPERATOR SERVICES

X     Inbound (Assumes 70% agent productivity) {Confidential portion omitted and
      filed separately with the Commission}

X     VRU to LO Promotions-900 Primary {Confidential portion omitted and filed
      separately with the Commission} 

X     VRU to LO Promotions-900 Not Primary {Confidential portion omitted and 
      filed separately with the Commission}

X     Training {Confidential portion omitted and filed separately with the
      Commission}

X     TR Incentive Pay {Confidential portion omitted and filed separately with 
      the Commission}

X     TR Supervisors (3) - Hampton {Confidential portion omitted and filed
      separately with the Commission}

X     Remote Monitoring {Confidential portion omitted and filed separately with 
      the Commission}

X     Long Distance {Confidential portion omitted and filed separately with the
      Commission} 

      Less 70% Agent Productivity {Confidential portion omitted and filed
      separately with the Commission}

X     OUTBOUND LIVE OPERATOR SERVICES

      0 - 10,000 Hours        {Confidential portion omitted and filed 
                              separately with the Commission}

      10,001 - 20,000 Hours   {Confidential portion omitted and filed 
                              separately with the Commission}

      20,001 +                {Confidential portion omitted and filed 
                              separately with the Commission}

X     Training {Confidential portion omitted and filed separately with the
      Commission}

__    Third Party Transfer/Verification {Confidential portion omitted and filed
      separately with the Commission}

Notes:


1.     Prices are subject to change if AT&T fee structure changes. Not included
       are caller refunds or any applicable taxes.

2.     Inbound live operator services dedicated only agents to Quintel/PRN will
       have a {Confidential portion omitted and filed separately with the
       Commission} minimum/agent hour if {Confidential portion omitted and filed
       separately with the Commission} agent productivity is not achieved.

                                   ACCEPTANCE

The signatures below indicate full acceptance of the terms and conditions of the
automated program identified. This is an addendum to Service Agreement
#____________________ dated: ________________________.

New Lauderdale        West Interactive Corporation

Signature:________________________ Signature:__________________________
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Title:                                    Title:      Account Manager
       ---------------------------               ------------------------------
Date:                                     Date: 
     -----------------------------              -------------------------------
           West Interactive Corporation - Proprietary and Confidential